GWK
Mt. Gilead, Ohio
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Joined: 09/16/2002
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Our Dometic RM 1350 refrigeraror appears to have stopped cooling. It has worked fine for almost 2 yr. This morning it was up to 47 degrees. I changed the temp setting to the coolest and it is still warming. It sounds like it is running. It was on "auto" and has both electric and gas sources. I switched it over to gas with no apparent change. I now has it off for a few minutes to see if something will reset. I believe it is under warranty but I can not get it to a service facility for around 10 days.
Any ideas will be appreciated...........
Thanks.
2011 Sportscoach 390TS
Cummins ISB / Freightliner XCS
Gary W. Kincade
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OldGreaser
South Texas
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Joined: 02/13/2010
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If you open the access from outside the rig there should be a few things you can check.
-Select propane and listen for it to start up. It should be obvious. This proves you have a heat source. A knowledgable person can readily check if you have heat when on 110v. A less knowledgable person can feel around until they burn their hand (a bit.)
-If you have cooling fans, have you heard them run lately? If they are installed they need to run. I have had this failure and without the fans you are subject to ambient temperature. You should be able to see an automotive blade fuse that's in an inline holder on an orange wire that supplies 12 volts to a small automotive relay (small black cube bolted to back wall). Change this fuse for luck. Mine was bent and not making the connection as delivered.
-If you can get at the circuit board (covered by a black plastic affair that has a liftable piece at the bottom) see if you can see & inspect and even better, test the two fuses that are on the board. You should find another small automotive blade fuse that you can change. You should also find a glass cylinder fuse that's an unusual length, about 3/4". If the glass fuse is blown, your 110v elements will not be energized. On mine, this fuse blew when the elements died. I think its purpose is to protect the circuit board. The auto blade fuse also needs to be good for the fridge to work properly.
That's the end of my dangerous amount of knowledge. I'm sure some good technical folks will come to your rescue with other things to be looked at & tested.
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enblethen
Moses Lake, WA
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Joined: 01/05/2005
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I would start by checking the connector for the thermistor. It is on the circuit board.
Bud
USAF Retired
Suzuki XL7 pushing Pace Arrow
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ArmySFCRet
Moving to Congress, AZ
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Joined: 01/02/2004
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And if you smell ammonia it's all over. 
'04 Cross Country 35' w/300 Cummins
'05 Sebring CV on KarKaddy 460SS
'09 Dodge Ram 1500 4x4 Crew 5.7 Hemi MDS
'51 & '53 Hudson Hornets 308 6cyl w/TWIN H-POWER
&
5 lbs of BG the Yorkie
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Grand Canyon Chapter of Hudson Essex Terraplane Club Inc
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dougrainer
Carrolton, Texas
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Joined: 06/11/2007
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Your warranty is 2 years Part AND Labor and the 3rd year is PART ONLY, YOU pay labor. The odds are the rear cooling fans are inop. Go outside and remove the outside access door and try to prop a house fan blowing up from the bottom to the top and see if it cools. Is this refer in a slide room? Doug
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GWK
Mt. Gilead, Ohio
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I checked the fuses and the connections and things look OK. I guess it will just be an ice box until we get home.
Thanks for your help.........
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OldGreaser
South Texas
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Good Luck, I hope it is not expensive. Please post the outcome.
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